roles/export-commits/tasks/main.yaml

- name: "Run Copybara migration"
  ansible.builtin.shell:
    cmd: "sh export-commits.sh"
    chdir: "{{ zuul.project.src_dir }}/.copybara"
  register: result
  # Exit status 4 means NO_OP:
  # https://github.com/google/copybara/blob/55c4904442bcf905fe03c2297488b90428b472a7/java/com/google/copybara/util/ExitCode.java#L42
  failed_when: result.rc not in [0, 4]
  retries: 3